Alright, let's work through 5388486 times 84041044 step by step
5388486 × 84041044 = 84041044 × (5388486)
+ 84041044 × 6 resulting in 504246264
+ 84041044 × 80 resulting in 6723283520
+ 84041044 × 400 resulting in 33616417600
+ 84041044 × 8000 what gives us 672328352000
+ 84041044 × 80000 yielding 6723283520000
+ 84041044 × 300000 that equals 25212313200000
+ 84041044 × 5000000 which equals 420205220000000

= 452853989019384
